Portion of a loudspeaker housing



FIG. 1 is a perspective view of a portion of a loudspeaker housing showing my new design;

FIG. 2 is a front elevational view, the rear elevational view being a mirror image thereof,

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a side elevational view, the opposite side elevational view being a mirror image thereof.

The heavy broken line along the bottom of the portion of the loudspeaker housing denotes a boundary of the claimed design and does not form a part thereof. The broken line showings of the semicircular elements along the bottom are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a portion of a loudspeaker housing, as shown and described. 